| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent corrosion and falling-off of an air deflector while keeping air resistance reduction effect with a simple structure.SOLUTION: The lower part structure of a vehicle has a fuel tank 18 arranged in a manner of protruding downward from a floor panel 10 forming a floor part of a vehicle body and an underfloor structure such as a main muffler 24, where an air deflector 30 is mounted on a lower surface of the floor panel at a front region of the vehicle body of the underfloor structure. The air deflector 30 is constituted of: an oblique wall 32 forming an oblique surface descending from the front side to the rear side of the vehicle body; a side wall 34 blocking a part between the oblique wall 32 and a floor panel 20 with both ends in a vehicle width direction of the oblique wall 32; and an air dam 38 protruding downward from a rear end in a vehicle traveling direction of the oblique wall 32. A rear end face o facing the underfloor structure of the air deflector 30 is opened, a lower end C of the oblique wall 32 is positioned further upward than the lower end of the underfloor structure, and a lower end D of the air dam 38 is positioned further below the lower end of the underfloor structure.</p> |
